I. Function and Feature
1.Wide load range ; high accuracy , reliability and sensitivity; low power loss.
2. Bi-directional measuring, accurately measure the active energy of both forward and reverse power.
3.Passive pulse output interface with optocoupler isolation.
4. RS485. Baud rate is 1200 or 2400（DL/T645）and 4800(MODBUS), but it can be set at1200,2400, 4800 or 9600.( This function is optional.)
5. The meter uses LCD in a clearer display and nicer appearance.The total consumed energy is displayed in the top line, while the other items of constant, energy ,meter NO., voltage and current,power are displayed in the lower line in turns with an interval of 5 second .
II. Specifications and Parameter
1.Specifications
type | Class index | Reference voltage Un | Rated current |
DDS3666 | Class 1 | 220V,230V | 1.5(6)A,5(20)A, 5(32)A, 5(65)A,10(40)A, 10(60)A,15(60)A |
2. Basic error (Ib is basic current，Imax is maximum current)
load current | power factor | elementary error（%） |
Class 1 | Class 2 |
0.05Ib≤I＜0.1Ib | 1.0 | ±1.5 | ±2.5 |
0.1Ib≤I≤Imax | 1.0 | ±1.0 | ±2.0 |
0.1Ib≤I＜0.2Ib | 0.5L(lag) | ±1.5 | ±2.5 |
0.8C(advance) | ±1.5 | － |
0.2Ib≤I≤Imax | 0.5L(lag) | ±1.0 | ±2.0 |
0.8C(advance) | ±1.0 | － |
III. Installation and Wiring
Configuration and Dimension
2.Wiring Diagram
Direct Connection